The flow rate y ( m 3 / min ) in a device used for air - quality measurement depends on the pressure drop x
The flow rate y mmin in a device used for airquality measurement depends on the pressure drop x in of water across the device's filter. Suppose that for x values between and the two variables are related according to the simple linear regression model with true regression line
y x
a
What is the expected change in flow rate associated with a in increase in pressure drop?
mmin
Explain.
We expect the change in flow rate y to be the yintercept of the regression line.We expect the change in flow rate y to be the slope of the regression line.We expect the change in flow rate x to be the yintercept of the regression line.We expect the change in flow rate x to be the slope of the regression line.
b
What change in flow rate can be expected when pressure drop decreases by in
mmin
c
What is the expected flow rate for a pressure drop of in A drop of in
in drop mmin in drop mmin
d
Suppose
and consider a pressure drop of in What is the probability that the observed value of flow rate will exceed That observed flow rate will exceed Round your answers to four decimal places.
